What: Almost.at is a Web-based tool that allows users to follow events in real time across Twitter, Flickr, YouTube, and a variety of other online services. The site also allows users to specify which Twitter members are at an event, rather than just Tweeting about it secondhand. It lets users know the links that are most often retweeted. Upcoming features on the site include allowing users to moderate embedded Twitter feeds on their Web page.
How: Because Twitter users use the hash ...